Образуйте множественное число на английском языке. Пожалуйста.!!!!!!The girl is going to

Образуйте множественное число на английском языке. Пожалуйста.!!!!!!
The girl is going to visit this city.
This boy is going to eat a sandwich.
That cat is going to catch a mouse.
The old man is going to plant an apple tree.
This child is going to draw a deer.
The baby is going to sleep.
The sportsman is going to buy a new ball.
That farmer is going to buy a sheep and a horse.
That woman is going to show the photo to her friend.
The boy is going to watch his fish.